121022121102250 has 32 divisors (see below), whose sum is σ = 226554327155520. Its totient is φ = 48408652618000.

The previous prime is 121022121102151. The next prime is 121022121102251. The reversal of 121022121102250 is 52201121220121.

It is not an unprimeable number, because it can be changed into a prime (121022121102251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71720745 + ... + 73388755.

It is an arithmetic number, because the mean of its divisors is an integer number (7079822723610).

Almost surely, 2^{121022121102250} is an apocalyptic number.

121022121102250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121022121102250 is a deficient number, since it is larger than the sum of its proper divisors (105532206053270).

121022121102250 is a wasteful number, since it uses less digits than its factorization.

121022121102250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958247 (or 1958237 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 121022121102250 its reverse (52201121220121), we get a palindrome (173223242322371).

The spelling of 121022121102250 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred fifty".